基于K.B.鲁佩涅依特理论的露天坑下采空区算顶板安全厚度计算

Calculation of Safe Roof Thickness of Mined-out Area Under Open pit Based on K.B.Lu Peinie Theory

对三道庄露天开采境界内采空区的顶板岩体进行了受力分析。采用K.B.鲁佩涅伊特理论计算方法及假设条件,建立了采空区顶板岩体力学模型。应用MATLAB数值模拟软件,建立了安全系数K=1.3时不同采空区跨度与顶板安全厚度之间的对应关系,对指导该矿露天开采的安全生产具有重要的意义。

The force analysis of the roof strata of underground mined-out areas in Sandaozhuang open-pit mine was made,and based on K.B.Lu peinie theory and some assumed conditions a mechanical model of roof strata of mined-out area was built.The corresponding relation between the safe roof thickness and different spans of mined-out area under safety coefficient is 1.3 was established by using numerical simulation software MATLAB.This has significance for the safety maintenance in production of the open-pit mine.